1 files changed, 3 insertions, 44 deletions

diff --git a/crates/vcs_data/src/data/local/latest_info.rs b/crates/vcs_data/src/data/local/latest_info.rs
index 99f423b..ce45372 100644
--- a/crates/vcs_data/src/data/local/latest_info.rs
+++ b/crates/vcs_data/src/data/local/latest_info.rs
@@ -1,11 +1,10 @@
 use std::{
     path::{Path, PathBuf},
-    time::{SystemTime, UNIX_EPOCH},
+    time::SystemTime,
 };
 
 use cfg_file::ConfigFile;
-use serde::{Deserialize, Deserializer, Serialize, Serializer};
-use tokio::time::Instant;
+use serde::{Deserialize, Serialize};
 
 use crate::{
     constants::{CLIENT_FILE_LATEST_INFO, CLIENT_FILE_LATEST_INFO_NOSET},
@@ -32,11 +31,7 @@ pub struct LatestInfo {
     pub ref_sheet_content: SheetData,
 
     /// Update instant
-    #[serde(
-        serialize_with = "serialize_instant",
-        deserialize_with = "deserialize_instant"
-    )]
-    pub update_instant: Option<Instant>,
+    pub update_instant: Option<SystemTime>,
 
     // Members
     /// All member information of the vault, allowing me to contact them more conveniently
@@ -55,39 +50,3 @@ pub struct SheetInfo {
     pub sheet_name: SheetName,
     pub holder_name: Option<MemberId>,
 }
-
-fn serialize_instant<S>(instant: &Option<Instant>, serializer: S) -> Result<S::Ok, S::Error>
-where
-    S: Serializer,
-{
-    let system_now = SystemTime::now();
-    let instant_now = Instant::now();
-    let duration_since_epoch = instant
-        .as_ref()
-        .and_then(|i| i.checked_duration_since(instant_now))
-        .map(|d| system_now.checked_add(d))
-        .unwrap_or(Some(system_now))
-        .and_then(|t| t.duration_since(UNIX_EPOCH).ok())
-        .unwrap_or_else(|| SystemTime::now().duration_since(UNIX_EPOCH).unwrap());
-
-    serializer.serialize_u64(duration_since_epoch.as_millis() as u64)
-}
-
-fn deserialize_instant<'de, D>(deserializer: D) -> Result<Option<Instant>, D::Error>
-where
-    D: Deserializer<'de>,
-{
-    let millis = u64::deserialize(deserializer)?;
-    let duration_since_epoch = std::time::Duration::from_millis(millis);
-    let system_time = UNIX_EPOCH + duration_since_epoch;
-    let now_system = SystemTime::now();
-    let now_instant = Instant::now();
-
-    if let Ok(elapsed) = system_time.elapsed() {
-        Ok(Some(now_instant - elapsed))
-    } else if let Ok(duration_until) = system_time.duration_since(now_system) {
-        Ok(Some(now_instant + duration_until))
-    } else {
-        Ok(Some(now_instant))
-    }
-}